Ringing out General Relativity: Quasi-normal mode frequencies for black holes of any spin in modified gravity
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866915002236010496 |
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| author | Chung, Adrian Ka-Wai Yunes, Nicolas |
| author_facet | Chung, Adrian Ka-Wai Yunes, Nicolas |
| contents | After black holes collide, the remnant settles to a stationary state by emitting gravitational waves. Once non-linearities subside, these ringdown waves are dominated by exponentially-damped sinusoids, or quasinormal modes. We develop a general method using perturbative spectral expansions to calculate the quasinormal-mode frequencies and damping times in a wide class of modified gravity theories for black holes with any subextremal spin. We apply this method to scalar-Gauss-Bonnet gravity to show its accuracy, thus enabling robust ringdown tests with gravitational wave data. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2405_12280 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Ringing out General Relativity: Quasi-normal mode frequencies for black holes of any spin in modified gravity Chung, Adrian Ka-Wai Yunes, Nicolas General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics After black holes collide, the remnant settles to a stationary state by emitting gravitational waves. Once non-linearities subside, these ringdown waves are dominated by exponentially-damped sinusoids, or quasinormal modes. We develop a general method using perturbative spectral expansions to calculate the quasinormal-mode frequencies and damping times in a wide class of modified gravity theories for black holes with any subextremal spin. We apply this method to scalar-Gauss-Bonnet gravity to show its accuracy, thus enabling robust ringdown tests with gravitational wave data. |
| title | Ringing out General Relativity: Quasi-normal mode frequencies for black holes of any spin in modified gravity |
| topic | General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2405.12280 |